![Singer Sia and dancer Maddie Ziegler perform during an Apple media event in San Francisco, California, U.S. September 7, 2016. REUTERS/Beck Diefenbach Stock Photo - Alamy Singer Sia and dancer Maddie Ziegler perform during an Apple media event in San Francisco, California, U.S. September 7, 2016. REUTERS/Beck Diefenbach Stock Photo - Alamy](https://c8.alamy.com/comp/2CNTXYB/singer-sia-and-dancer-maddie-ziegler-perform-during-an-apple-media-event-in-san-francisco-california-us-september-7-2016-reutersbeck-diefenbach-2CNTXYB.jpg)
Singer Sia and dancer Maddie Ziegler perform during an Apple media event in San Francisco, California, U.S. September 7, 2016. REUTERS/Beck Diefenbach Stock Photo - Alamy
![Singer Sia and dancer Maddie Ziegler perform during an Apple media event in San Francisco, California, U.S. September 7, 2016. REUTERS/Beck Diefenbach Stock Photo - Alamy Singer Sia and dancer Maddie Ziegler perform during an Apple media event in San Francisco, California, U.S. September 7, 2016. REUTERS/Beck Diefenbach Stock Photo - Alamy](https://c8.alamy.com/comp/2CR06T8/singer-sia-and-dancer-maddie-ziegler-perform-during-an-apple-media-event-in-san-francisco-california-us-september-7-2016-reutersbeck-diefenbach-2CR06T8.jpg)
Singer Sia and dancer Maddie Ziegler perform during an Apple media event in San Francisco, California, U.S. September 7, 2016. REUTERS/Beck Diefenbach Stock Photo - Alamy
![Sia closed out the Apple event today and obviously she totally crushed it - HelloGigglesHelloGiggles Sia closed out the Apple event today and obviously she totally crushed it - HelloGigglesHelloGiggles](https://hellogiggles.com/wp-content/uploads/sites/7/2016/09/07/GettyImages-599936588.jpg)